pyupgrade docs to Python 3 (#5705)

pyupgrade docs to Python 3

Author: nicoddemus

doc/en/assert.rst

@@ -238,14 +238,17 @@ file which provides an alternative explanation for ``Foo`` objects:
 
    def pytest_assertrepr_compare(op, left, right):
        if isinstance(left, Foo) and isinstance(right, Foo) and op == "==":
-           return ["Comparing Foo instances:", "   vals: %s != %s" % (left.val, right.val)]
+           return [
+               "Comparing Foo instances:",
+               "   vals: {} != {}".format(left.val, right.val),
+           ]
 
 now, given this test module:
 
 .. code-block:: python
 
    # content of test_foocompare.py
-   class Foo(object):
+   class Foo:
        def __init__(self, val):
            self.val = val
 

doc/en/builtin.rst

@@ -162,7 +162,10 @@ For information about fixtures, see :ref:`fixtures`. To see a complete list of a
 
     no tests ran in 0.12 seconds
 
-You can also interactively ask for help, e.g. by typing on the Python interactive prompt something like::
+You can also interactively ask for help, e.g. by typing on the Python interactive prompt something like:
+
+.. code-block:: python
 
     import pytest
+
     help(pytest)

doc/en/cache.rst

@@ -33,15 +33,18 @@ Other plugins may access the `config.cache`_ object to set/get
 Rerunning only failures or failures first
 -----------------------------------------------
 
-First, let's create 50 test invocation of which only 2 fail::
+First, let's create 50 test invocation of which only 2 fail:
+
+.. code-block:: python
 
     # content of test_50.py
     import pytest
 
+
     @pytest.mark.parametrize("i", range(50))
     def test_num(i):
         if i in (17, 25):
-           pytest.fail("bad luck")
+            pytest.fail("bad luck")
 
 If you run this for the first time you will see two failures:
 
@@ -183,15 +186,19 @@ The new config.cache object
 Plugins or conftest.py support code can get a cached value using the
 pytest ``config`` object.  Here is a basic example plugin which
 implements a :ref:`fixture` which re-uses previously created state
-across pytest invocations::
+across pytest invocations:
+
+.. code-block:: python
 
     # content of test_caching.py
     import pytest
     import time
 
+
     def expensive_computation():
         print("running expensive computation...")
 
+
     @pytest.fixture
     def mydata(request):
         val = request.config.cache.get("example/value", None)
@@ -201,6 +208,7 @@ across pytest invocations::
             request.config.cache.set("example/value", val)
         return val
 
+
     def test_function(mydata):
         assert mydata == 23
 

doc/en/capture.rst

@@ -49,16 +49,21 @@ Using print statements for debugging
 ---------------------------------------------------
 
 One primary benefit of the default capturing of stdout/stderr output
-is that you can use print statements for debugging::
+is that you can use print statements for debugging:
+
+.. code-block:: python
 
     # content of test_module.py
 
+
     def setup_function(function):
         print("setting up %s" % function)
 
+
     def test_func1():
         assert True
 
+
     def test_func2():
         assert False
 

doc/en/deprecations.rst

@@ -455,7 +455,9 @@ Internal classes accessed through ``Node``
 .. versionremoved:: 4.0
 
 Access of ``Module``, ``Function``, ``Class``, ``Instance``, ``File`` and ``Item`` through ``Node`` instances now issue
-this warning::
+this warning:
+
+.. code-block:: text
 
     usage of Function.Module is deprecated, please use pytest.Module instead
 

doc/en/doctest.rst

@@ -191,15 +191,21 @@ namespace in which your doctests run. It is intended to be used within
 your own fixtures to provide the tests that use them with context.
 
 ``doctest_namespace`` is a standard ``dict`` object into which you
-place the objects you want to appear in the doctest namespace::
+place the objects you want to appear in the doctest namespace:
+
+.. code-block:: python
 
     # content of conftest.py
     import numpy
+
+
     @pytest.fixture(autouse=True)
     def add_np(doctest_namespace):
-        doctest_namespace['np'] = numpy
+        doctest_namespace["np"] = numpy
 
-which can then be used in your doctests directly::
+which can then be used in your doctests directly:
+
+.. code-block:: python
 
     # content of numpy.py
     def arange():
@@ -219,7 +225,9 @@ Skipping tests dynamically
 
 .. versionadded:: 4.4
 
-You can use ``pytest.skip`` to dynamically skip doctests. For example::
+You can use ``pytest.skip`` to dynamically skip doctests. For example:
+
+.. code-block:: text
 
     >>> import sys, pytest
     >>> if sys.platform.startswith('win'):

doc/en/example/attic.rst

@@ -18,7 +18,7 @@ example: specifying and selecting acceptance tests
         return AcceptFixture(request)
 
 
-    class AcceptFixture(object):
+    class AcceptFixture:
         def __init__(self, request):
             if not request.config.getoption("acceptance"):
                 pytest.skip("specify -A to run acceptance tests")
@@ -65,7 +65,7 @@ extend the `accept example`_ by putting this in our test module:
         return arg
 
 
-    class TestSpecialAcceptance(object):
+    class TestSpecialAcceptance:
         def test_sometest(self, accept):
             assert accept.tmpdir.join("special").check()
 

doc/en/example/markers.rst

@@ -33,7 +33,7 @@ You can "mark" a test function with custom metadata like this:
         pass
 
 
-    class TestClass(object):
+    class TestClass:
         def test_method(self):
             pass
 
@@ -278,7 +278,7 @@ its test methods:
 
 
     @pytest.mark.webtest
-    class TestClass(object):
+    class TestClass:
         def test_startup(self):
             pass
 
@@ -295,7 +295,7 @@ Due to legacy reasons, it is possible to set the ``pytestmark`` attribute on a T
     import pytest
 
 
-    class TestClass(object):
+    class TestClass:
         pytestmark = pytest.mark.webtest
 
 or if you need to use multiple markers you can use a list:
@@ -305,7 +305,7 @@ or if you need to use multiple markers you can use a list:
     import pytest
 
 
-    class TestClass(object):
+    class TestClass:
         pytestmark = [pytest.mark.webtest, pytest.mark.slowtest]
 
 You can also set a module level marker::
@@ -523,7 +523,7 @@ code you can read over all such settings.  Example:
 
 
     @pytest.mark.glob("class", x=2)
-    class TestClass(object):
+    class TestClass:
         @pytest.mark.glob("function", x=3)
         def test_something(self):
             pass
@@ -539,7 +539,7 @@ test function.  From a conftest file we can read it like this:
 
     def pytest_runtest_setup(item):
         for mark in item.iter_markers(name="glob"):
-            print("glob args=%s kwargs=%s" % (mark.args, mark.kwargs))
+            print("glob args={} kwargs={}".format(mark.args, mark.kwargs))
             sys.stdout.flush()
 
 Let's run this without capturing output and see what we get: